Annealing pot



April 15, 1930. M. w. GLEISNER ANNEALING POT Fi led Oct. 14, 192'! Patented Apr. 15, 1930 UNITED STATES PATENT OFFICE MICHAEL W. GLEISNER, OF RACINE, WISCONSIN, ASSIGNOR TO THE AMERICAN BRAKE SHOE & FOUNDRY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE ANNEALING POT Application filed October 14, 1927. Serial No. 226,126.

19 struction adapted to receive and hold sand or other heat insulating material and capable of being easily handled and sealed on the pot.

With these and other ends in view the invention consists of the novel cover plate illusit; trated in a selected embodiment in the accompanying drawings in which,

Fig. l is a perspective view of the cover plate.

Fig. 2 is a sectional view showing a portion Y) of a pot with the cover plate thereon.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2. v

Fig. 4 is a top plan view of a portion of the cover plate.

I have selected a rectangular cover plate for illustration in the accompanying drawings and referring thereto 5 designates the cover plate generally and it has an annular upstanding flange 6 spaced inwardly from the peripheral edge 7 of the plate. The body 8 of the cover may be flat on its top and bottom, but I prefer that the plate should be thicker at the central portion and taper at 9 to the annular flange 6 for greater strength a and rigidity. A pick-up eye lug 10 is located on top of the cover plate atthe center there of and strengthening ribs 11 extend from this eye lug to the annular rib 6 and through said rib at 11' to the periphery of the cover.

The cover is made of a size to seat 011 the shoulder 12 within the flared upper end 13 of the pot 14 and the annular flange 6 is spaced from the peripheral edge of the cover to facilitate luting the cover to the top of the pot.

4; I prefer to make the flange 6 higher than the eye lug 10 so that the lug may be protected by the sand or other insulating material held by the flange on the cover.

My invention provides a cover for anneala ing pots of tr ng and ub tan ial s same tion which can be easily handled, which can be easily and efliciently luted on the top of the pot and whichis capable of retaining a suflicient quantity of sand or other material to insulate the cover. The annular flange 6 is of a height to retain a substantial. quantity of sand or other insulating material on the cover. The cover is used on an annealing pot when the castings thereon are to be annealed without packing, and it is also used on the top pot of a stack in an oven to prevent the castings in the top pot from being over-annealed.

I have shown the cover in a rectangular shape and construction which has been found entirely satisfactory for the purposes intended, but I may make the cover to fit a pot of any shape, and I may vary the construction of the cover within the scope of the following claims:

I claim:

1. An integral cover plate for annealing pots comprising a body varying from greater thickness at its central portion to lesser thickness at its rim and having an upstanding an nular flange on the top thereof to retain a quantity of insulating material on the cover plate, a pick-up eye lug on the top of the body at the center thereof, and strengthening ribs of substantially the height of and merging with the eye lug and tapering from the eye lug and merging with the annular flange. 2. An integral cover plate for annealing pots comprising a body having an upstanding annular flange on the top thereof spaced from its periphery, a pick-up eye lug on the top of the body at the center thereof and within the confines of the top of said flange, and oppositely disposed tapered ribs merging with said eye lug at the top thereof and extending from the eye lug through the annular flange to the periphery of the cover plate.

MICHAEL W. GLEISNEB, 

